ArticleApplied and environmental microbiology2013
Defining the functional potential and active community members of a sediment microbial community in a high-arctic hypersaline subzero spring.
Article in Applied and environmental microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- Metagenomic insights into the taxonomic and metabolic diversity of the microbiome of Lake Karum in the Danakil Depression, Ethiopia.Environmental microbiome · 2026Article
- Screening and Efficacy Evaluation of Deodorizing Microbes for Manure Waste in Cold Regions: A Case Study of Xinjiang, China.Microorganisms · 2026Article
- Functional genetic potential of benthic microbial mat communities in Arctic, Antarctic, and sub-Antarctic lakes.FEMS microbiology ecology · 2026Article
- Bacterial Communities Along Environmental Gradients in Tropical Soda Lakes.Microbial ecology · 2023Article
- Denitrification in hypersaline and coastal environments.FEMS microbiology letters · 2023Article
- Active lithoautotrophic and methane-oxidizing microbial community in an anoxic, sub-zero, and hypersaline High Arctic spring.The ISME journal · 2022Article
- The identification of sulfide oxidation as a potential metabolism driving primary production on late Noachian Mars.Scientific reports · 2020Article
- Controlled sampling of ribosomally active protistan diversity in sediment-surface layers identifies putative players in the marine carbon sink.The ISME journal · 2020Article
- A Multiplex Immunosensor for Detecting Perchlorate-Reducing Bacteria for Environmental Monitoring and Planetary Exploration.Frontiers in microbiology · 2020Article
- Culture-Dependent Bioprospecting of Bacterial Isolates From the Canadian High Arctic Displaying Antibacterial Activity.Frontiers in microbiology · 2019Article
- The functional potential and active populations of the pit mud microbiome for the production of Chinese strong-flavour liquor.Microbial biotechnology · 2017Article
- Comparison of the active and resident community of a coastal microbial mat.Scientific reports · 2017Article
- Biological Characterization of Microenvironments in a Hypersaline Cold Spring Mars Analog.Frontiers in microbiology · 2017Article
- Viral Induced Microbial Mortality in Arctic Hypersaline Spring Sediments.Frontiers in microbiology · 2016Article
- Challenges of metagenomics and single-cell genomics approaches for exploring cyanobacterial diversity.Photosynthesis research · 2015Review
- Abundance and diversity of bacteria in oxygen minimum drinking water reservoir sediments studied by quantitative PCR and pyrosequencing.Microbial ecology · 2015Article
- Evidence of in situ microbial activity and sulphidogenesis in perennially sub-0 °C and hypersaline sediments of a high Arctic permafrost spring.Extremophiles : life under extreme conditions · 2015Article
- Insights from the metagenome of an acid salt lake: the role of biology in an extreme depositional environment.PloS one · 2015Article
- The transcriptional response of microbial communities in thawing Alaskan permafrost soils.Frontiers in microbiology · 2015Article
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6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
The Lost Hammer (LH) Spring is the coldest and saltiest terrestrial spring discovered to date and is characterized by perennial discharges at subzero temperatures (-5°C), hypersalinity (salinity, 24%), and reducing (≈-165 mV), microoxic, and oligotrophic conditions. It is rich in sulfates (10.0%, wt/wt), dissolved H2S/sulfides (up to 25 ppm), ammonia (≈381 μM), and methane (11.1 g day(-1)). To determine its total functional and genetic potential and to identify its active microbial components, we performed metagenomic analyses of the LH Spring outlet microbial community and pyrosequencing analyses of the cDNA of its 16S rRNA genes. Reads related to Cyanobacteria (19.7%), Bacteroidetes (13.3%), and Proteobacteria (6.6%) represented the dominant phyla identified among the classified sequences. Reconstruction of the enzyme pathways responsible for bacterial nitrification/denitrification/ammonification and sulfate reduction appeared nearly complete in the metagenomic data set. In the cDNA profile of the LH Spring active community, ammonia oxidizers (Thaumarchaeota), denitrifiers (Pseudomonas spp.), sulfate reducers (Desulfobulbus spp.), and other sulfur oxidizers (Thermoprotei) were present, highlighting their involvement in nitrogen and sulfur cycling. Stress response genes for adapting to cold, osmotic stress, and oxidative stress were also abundant in the metagenome. Comparison of the composition of the functional community of the LH Spring to metagenomes from other saline/subzero environments revealed a close association between the LH Spring and another Canadian high-Arctic permafrost environment, particularly in genes related to sulfur metabolism and dormancy. Overall, this study provides insights into the metabolic potential and the active microbial populations that exist in this hypersaline cryoenvironment and contributes to our understanding of microbial ecology in extreme environments.
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